Cement-block machine



Feb.. 9 1926.

' c. R. HARRY CEMENT BLOCK MACHINE Filed Sepia. 29, 1924 5 Sheets-Sheet 1 l 31a-vanto@ feb. s 192s.) 1,572,6(52

` C, R. HARRY CEMENT BLOCK MACHINE Filed Sept. 29, 1924 y3 sheets-sheet a Feb 9 7 C. R. HARRY CEMENT BLOCK MACHINE Filed Sept. 29, 1924 immuun Patented Feb.' 9, 1926.

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CHARLES R. HARRY, F FREDERECKTOVJN, OHM), SSGCE'UR TO THE J. B. FOOTE FOUNDRY COMPANY, OF FREDEROXTOVIN, OHO, A CORPORATION OF OHIO.

CEMENT-BLOCK IiIACHNE.

Application filed September To all whom t may concern:

Be it known that lf, @nannies R. HARRY, a citizen of the "United States, residing at Fredericktown, `in the county of Knox and State of Ohio, have invented certain newV and useful Improvements inl Cement-Block Machines, of which the following is a specification.

My invention'relates to cement block, machines, it particularly relating to ,improvements upon the machine described in Letterel Patent of the United States No. 934,112, issued September 14, 1909 for block forming machine upon the application of Charles R. Walter. n

One of the objects of my invention is to provide means for adjusting the enclosing members of the mold whereby the sides, ends andbottom can be brought in proper perpendicular or parallel relation.`

A further object of the invention is to so form the operating levers for the mold as to permit of the installation of a hopper for the material to be molded.

ln the accompanying drawings:

Fig. l is a top plan view of the mold.

Fig. 2 is a rear elevation of the same in closed position.

Fig. 3 is an end view.l

Fig. 4 is a bottom plan view.

Fig. 5 is a rear elevation showing the mold in openposition.

Fig. 6 is a plan view of one of the adjustable yoke heads.

Figs. 7 and 8 are views of the inner sides of the two members of one of the rocker arms.

Inasmuehas my improvements relate only to that part of the machine constituting the meld proper, the foot lever and mechanism connected therewith for manipulating the cores has been omitted, being fully described in the patent referred to.

Referring to the drawings, 1 represents vertically-disposed end frame members, and.

2 a cross-frame member connecting the same, this cross-frame member supporting cam blocks 3. As in the patent referred to there is employed a pair of pivoted arms which carry the mold members, each of these arms in the present case being formed of twoparts 29, 1924. Serial No. 740,473.

et and 5 connected together by a bolt G. One of the parts, in the present case the part 4l, provided with a slotted opening 7 (Fig. 8) tl'irough which the bolt passes so as to allow adjustment as to length for the purpose to be explained. rlihe forward end ofV the part el of each arm'is pivoted on a rod 8 which extends through ears 9 on the upper edges of the frame piece 1, whereby the arms and mold members supported thereby may be swung forwardly in the manner explained in the patent referred to.

The bottom or face plate of the mold is indicated at 10 and has depressed end extensions 11, each provided with a slotted opening 12 (Figs. 1 and The part 5 of each rocker `arm has an ear 13 provided with a slotted opening 14 (Fig. 4) aligned lwith the corresponding opening 12 of the bottoml plate, and bolts 15 passing through these'slotted openings connect the bottom plate to the arms.

The rear plate of the `mold is indicated at 1G and is secured rigidly to upturned lugs 17 on the rear ends of the arm members 5 by bolts 18 (Figs. 2, 3 and 5) and also has ears 19 provided with pins 2O `which extend loosely into apertures 20'-V Iin the members 5 of the rocker arms (Figs. 3 and 5).

rEhe levers for opening` and closing the ends of the mold are indicated at 2l, each lever being pivoted on a pin 22 extending from the rear plate. A loracef23l preferably connects the pivot pins 22, the brace and levers being held on the pins by nuts 24.

Each lever has secured thereto by bolts 26 a sidewise and ,upwardly bent extension 25, the sidewise extending portions of these extensions being project-ed in opposite direc tions so as to provide room for the installation of a hopper for the material to be molded, if such a hopper is desired.

Each of the end plates of the mold is indicated at 27 and has Va pair of pins 28 on its lower edge fitting loosely in openings 29 in the depressed end extensionsll of the bottom plate. The upper corner of each end plate has a perforated projecting ear 30 carrying a rod 31. the mold is a yoke-shaped `link 32 the rear At each end ofesV end of .which has a bifurcated arm 425:5 pivoted l to the adjacent lever 2l by the bolt 3l. rIhe forward end of each link has an arnr E35 carrying a set-screw 3G; the set-screws bearing against the front and rear plates to `lock the plates in closed position. Connected with the link is a head 3T provided with slotted openings 38 to receive bolts 39 to adjustably connect the head withy the link and each head has integral arms ZI() pi Tcted at their outer ends on the rod 31.

The front plate of the mold is shown atV 4l, this plate carrying a removable pallet l2 having handle extensions Ll-Q, both. plate and pallet being perforated to receive the cores 43 which are operated in the manner described in the patent referred to. This front plate has ears lll on its lower edge which are perforated to receive the rod S whereby the front plate is hinged along its lower edge, the ears having extensions 45 to connect a front plate with the foot pedal mechanism such as described in saidpatent. The upper corners of the front plate are recessed as indicated at dil to receive the arms 35 of the links, the set screws 36 impinging the bottoms of the recesses to give the propernthrow to the front plate to cause it to fit snugly against the forward edges of the bottom and end plates and lock it in this position.

The general operation is the same as that described in the patent referred to. By grasping the lever handles 25 the mold can be tilted forwardly and laid upon thefframe parts l. By throwing the lever handles 25 outwardly in a direction indicated in Fig. 5 the ends of the mold can. be' separated from the molded blockso as to permit the pallet and the block thereon to be removed.

By reason of the adjustability of the heads 37 relatively to thelinks 32 the upper ends of the end plates can be moved in or out so as to bring said plates in parallel relation with each other and in perpendicular relation with the bottomj plate. By reason of the adj'ustabilityof the rocker arms as to length the forward edges 'of the bottom plate and end plates can: be moved toward the inner face of the front plate by reason of the fact that the bottom and end plates are carried by the parts 5 of the rocker arms, while the front plate is hinged to the frame structure. This latter adjustment is necessary when the parts' become worn to such an extent that the front plate when being locked to position will not occupy a true perpendicular position relatively to the bottom plate, and also serves the purpose' of permitting the different plates to be properly adjusted in the original assembly of the machine.

Having thus described my invention, I claim: j

l. In a mold of the character described,

movable end plates, operating levers, links connected with said levers, each link including an adjustable head having a pair of arms, and a rod carried by each end plate to which the arms of the corresponding head are connected.

2. In a mold, a hinged plate forming one side of the mold, a pair of hinged supporting members, plates connected with said hinged supporting members forming the bottom, ends and opposite side of said mold, and means for adjusting the relative positions of said first mentioned hinged plate and of the plates carried by said hinged supporting members, for the purpose specified'. f

' 3. In a mold of the character described, a hinged plate forming one side of the mold, a pair of hinged supporting arms each formed of two parts adjustably connected together so that one of said parts may be adjusted relatively to the other part, and plates constituting the bottom, ends and opposite side of said mold carried by the adjustable parts of said arms whereby said latter plates may be moved bodily toward the first mentioned hinged plate, for the purpose specified. i

et. In a mold of the character described, a hinged plate constituting one side ofV said mold, a pair of hinged arms, the hinges of said plate and arms being on a common axis whereby said arms and plate may be swung on a common center, each of saidA arms'ibeing formed of two parts adjustably connected together whereby the outer portion of each arm may be adjustedY relatively to said hinges, and plates forming thel formed of two parts adjustably connected together, said plate and arms swinging about a common center, plates forming the bottom, ends and opposite side of said mold carried by the outer parts .of said arms so as to be adjusted relatively to said first mentioned hinged plate, a pair of operating levers mounted on the side plate carried by said arms, links connected with said levers and also connected with said end plates, said links having extensions cooperating with said first mentioned' hinged plate, each extension having an adjustable screw to contact with said hinged plate and lock the same to position.` y

(i. In a mold of the character described, mold members forming the bottom, side and ends of the mold mounted to swing', the end members and Vone of the said side members being separable, a pair of operating; levers to swingsaid molded members and cooperate therewith to separate the same, said operating levers being' carried.

by the other side plates of said mold and projecting upwardly, said levers between their ends being extended in opposite directions and thence upwardly to provide a l0 space above ysaid mold members forl th installation of a hopper.

In testimony whereof, I have hereunto set my hand this 26th day of September, 1924.

CHARLES R. HARRY. 

